http://tinyurl.com/nu739we
Bissell Part#218-5600 - Genuine Calcium Water Filter for Bissell Steam Mop Cleaners 1865 series, 1867 series, 31N1 series, 21H6 series, 46B4 Series and 39W7 Series
Fits: Bissell 1865 series, 1867 series, 31N1 series, 21H6 series, 46B4 Series and 39W7 Series
Removes harsh minerals and ions from your tap water